USGS Coastal and Marine Geology Program

Coastal & Marine Geology Program

Field Activity Details for field activity 1984-004-FA

Other ID: 149

Status: Completed

Organization(s): USGS, Woods Hole Coastal and Marine Science Center

Funding Program(s):

Location: southern New England Shelf and slope, United States, North America, North Atlantic;

Principal Investigator(s): Bradford Butman

Affiliate Investigator(s):

Information Specialist(s):

Data Type(s): Electro-Magnetic: Magnetics, Environmental Data: CTD, Imagery: Photo, Location-Elevation: Navigation, Time Series: Mooring (physical oceanography)

Scientific Purpose/Goals: This cruise was part of a continuing study of currents and sediment transport on the Continental Slope. The major objectives of the cruise were: 1) to recover Slope Array II (three subsurface moorings at stations SA, SE, and SF, and a bottom tripod at T); 2) to deploy Slope Array III (five subsurface moorings at stations SA, SE, SF, SG, and SH, and one bottom tripod at station T); 3) to recover and redeploy four surface guard buoys at stations SF and T; and 4) to conduct a hydrographic survey across the outer shelf and upper slope between 68 and 71 degrees W.


Start Date: 1984-03-12

Start Port/Location: Woods Hole, MA

End Date: 1984-03-19

End Port/Location: Woods Hole, MA

Equipment Used: Magnetometer (wh), CTD, Camera- deep sea, Northstar 6000 LORAN-C, Bottom tripod

Information to be Derived: Time series data;

Summary of Activity and Data Gathered: Moorings deployed: 6 (#277, 278, 279, 280, 281, and 282 recovered FA 84024 OCEANUS 159 Nov. 13-24, 1984). Moorings recovered: 4 (#273, 274, 275, and 276, all deployed FA 83011 OCEANUS 149 Oct. 17-24, 1983). All mooring work was completed as planned. Bad weather curtailed mooring operations for one full day and made work difficult during most of the cruise. A moderate CTD survey was completed. The current meter on the bottom tripod system failed after about 3 weeks, probably because of a bad connecting cable. To assure near-bottom current data, an additional subsurface mooring was deployed at station T on OCEANUS cruise 154 by M. Briscoe on May 16, 1984. Hydrography: CTD: 18; XBT: 18; Salinity: 51; Suspended sediment oxygen: 15; Suspended sediment nutrients: 34.

Staff: Michael Bothner, Bradford Butman, Mary E. Hastings, Barry Irwin, Joseph S. Newell, Carol M. Parmenter, Lawrence Poppe, William J. Strahle

Affiliate Staff:
Jay Pulliam
Cathy O'Dell; Andrew Eliason (Eliason Data Service)

Notes: Original Center People field contained: Brad Butman, Mike Bothner, Jay Pulliam, Cathy O'Dell, Joseph Newell, Carol Parmenter, Lawrence Poppe, Barry Irwin, Mary Polly Shoukimas, William Strahle.
Project = Dynamics of Currents and Sediment Transport on the Continental Shelf and Slope, Dynamics of Currents and Sediment Transport on the Continental Shelf and Slope

Location Map:


photo of Oceanus


Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Magnetometer (wh) --- Magnetics
1984-004-FA-GP-001 ( Digital tape of MG data: inv. # 1018.)
1984-004-FA-OM-002 ( Digital tapes of CTD STATION DATA.)
Camera- deep sea --- Photo
1984-004-FA-PH-001 ( film collection of TRIPOD 280; 19840316-19841118)
Northstar 6000 LORAN-C --- Navigation
1984-004-FA-LN-001 ( Digital tapes of NV data: inv. # 2904 thru 2906.)
Bottom tripod --- Mooring (physical oceanography)
1984-004-FA-OM-001 ( NE slope mooring data)